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Discontinued Operations - Revenue and Loss before Income Tax Expense from Discontinued Operations (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 27, 2014
Dec. 28, 2013
Dec. 29, 2012
Discontinued Operations and Disposal Groups [Abstract]      
Total revenue $ 1,260us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue $ 3,884us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue $ 50,152us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue
(Income) loss from discontinued operations before income taxes $ (71)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax $ 528us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax $ 3,546us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax